2 Unix SMB/Netbios implementation.
4 Samba utility functions
5 Copyright (C) Andrew Tridgell 1992-1998
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
25 #ifdef WITH_NISPLUS_HOME
26 #ifdef BROKEN_NISPLUS_INCLUDE_FILES
28 * The following lines are needed due to buggy include files
29 * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and
30 * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA.
31 * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as
32 * an enum in /usr/include/rpcsvc/nis.h.
39 #if defined(GROUP_OBJ)
43 #endif /* BROKEN_NISPLUS_INCLUDE_FILES */
45 #include <rpcsvc/nis.h>
47 #else /* !WITH_NISPLUS_HOME */
49 #include "rpcsvc/ypclnt.h"
51 #endif /* WITH_NISPLUS_HOME */
52 #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */
56 #undef Realloc /* SSLeay defines this and samba has a function of this name */
61 extern int DEBUGLEVEL;
63 int Protocol = PROTOCOL_COREPLUS;
65 /* a default finfo structure to ensure all fields are sensible */
66 file_info def_finfo = {-1,0,0,0,0,0,0,"",""};
68 /* this is used by the chaining code */
74 case handling on filenames
76 int case_default = CASE_LOWER;
78 /* the following control case operations - they are put here so the
79 client can link easily */
82 BOOL use_mangled_map = False;
83 BOOL short_case_preserve;
86 static enum remote_arch_types ra_type = RA_UNKNOWN;
87 pstring user_socket_options=DEFAULT_SOCKET_OPTIONS;
89 pstring global_myname = "";
90 fstring global_myworkgroup = "";
91 char **my_netbios_names;
94 /****************************************************************************
95 find a suitable temporary directory. The result should be copied immediately
96 as it may be overwritten by a subsequent call
97 ****************************************************************************/
101 if ((p = getenv("TMPDIR"))) {
107 /****************************************************************************
108 determine whether we are in the specified group
109 ****************************************************************************/
111 BOOL in_group(gid_t group, gid_t current_gid, int ngroups, gid_t *groups)
115 if (group == current_gid) return(True);
117 for (i=0;i<ngroups;i++)
118 if (group == groups[i])
125 /****************************************************************************
126 like atoi but gets the value up to the separater character
127 ****************************************************************************/
128 char *Atoic(char *p, int *n, char *c)
130 if (!isdigit((int)*p))
132 DEBUG(5, ("Atoic: malformed number\n"));
138 while ((*p) && isdigit((int)*p))
143 if (strchr(c, *p) == NULL)
145 DEBUG(5, ("Atoic: no separator characters (%s) not found\n", c));
152 /*************************************************************************
153 reads a list of numbers
154 *************************************************************************/
155 char *get_numlist(char *p, uint32 **num, int *count)
159 if (num == NULL || count == NULL)
167 while ((p = Atoic(p, &val, ":,")) != NULL && (*p) != ':')
169 (*num) = Realloc((*num), ((*count)+1) * sizeof(uint32));
174 (*num)[(*count)] = val;
183 /*******************************************************************
184 check if a file exists - call vfs_file_exist for samba files
185 ********************************************************************/
186 BOOL file_exist(char *fname,SMB_STRUCT_STAT *sbuf)
189 if (!sbuf) sbuf = &st;
191 if (sys_stat(fname,sbuf) != 0)
194 return(S_ISREG(sbuf->st_mode));
197 /*******************************************************************
199 ********************************************************************/
200 int file_rename(char *from, char *to)
202 int rcode = rename (from, to);
206 /* Rename across filesystems needed. */
207 rcode = copy_reg (from, to);
212 /*******************************************************************
213 check a files mod time
214 ********************************************************************/
215 time_t file_modtime(char *fname)
219 if (sys_stat(fname,&st) != 0)
225 /*******************************************************************
226 check if a directory exists
227 ********************************************************************/
228 BOOL directory_exist(char *dname,SMB_STRUCT_STAT *st)
235 if (sys_stat(dname,st) != 0)
238 ret = S_ISDIR(st->st_mode);
244 /*******************************************************************
245 returns the size in bytes of the named file
246 ********************************************************************/
247 SMB_OFF_T get_file_size(char *file_name)
251 if(sys_stat(file_name,&buf) != 0)
252 return (SMB_OFF_T)-1;
256 /*******************************************************************
257 return a string representing an attribute for a file
258 ********************************************************************/
259 char *attrib_string(uint16 mode)
261 static fstring attrstr;
265 if (mode & aVOLID) fstrcat(attrstr,"V");
266 if (mode & aDIR) fstrcat(attrstr,"D");
267 if (mode & aARCH) fstrcat(attrstr,"A");
268 if (mode & aHIDDEN) fstrcat(attrstr,"H");
269 if (mode & aSYSTEM) fstrcat(attrstr,"S");
270 if (mode & aRONLY) fstrcat(attrstr,"R");
275 /*******************************************************************
276 show a smb message structure
277 ********************************************************************/
278 void show_msg(char *buf)
283 if (DEBUGLEVEL < 5) return;
285 DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n",
287 (int)CVAL(buf,smb_com),
288 (int)CVAL(buf,smb_rcls),
289 (int)CVAL(buf,smb_reh),
290 (int)SVAL(buf,smb_err),
291 (int)CVAL(buf,smb_flg),
292 (int)SVAL(buf,smb_flg2)));
293 DEBUG(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\nsmt_wct=%d\n",
294 (int)SVAL(buf,smb_tid),
295 (int)SVAL(buf,smb_pid),
296 (int)SVAL(buf,smb_uid),
297 (int)SVAL(buf,smb_mid),
298 (int)CVAL(buf,smb_wct)));
300 for (i=0;i<(int)CVAL(buf,smb_wct);i++)
302 DEBUG(5,("smb_vwv[%d]=%d (0x%X)\n",i,
303 SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i)));
306 bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct)));
308 DEBUG(5,("smb_bcc=%d\n",bcc));
310 if (DEBUGLEVEL < 10) return;
317 dump_data(10, smb_buf(buf), bcc);
320 /*******************************************************************
321 set the length and marker of an smb packet
322 ********************************************************************/
323 void smb_setlen(char *buf,int len)
325 _smb_setlen(buf,len);
333 /*******************************************************************
334 setup the word count and byte count for a smb message
335 ********************************************************************/
336 int set_message(char *buf,int num_words,int num_bytes,BOOL zero)
339 memset(buf + smb_size,'\0',num_words*2 + num_bytes);
340 CVAL(buf,smb_wct) = num_words;
341 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
342 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
343 return (smb_size + num_words*2 + num_bytes);
346 /*******************************************************************
347 setup only the byte count for a smb message
348 ********************************************************************/
349 void set_message_bcc(char *buf,int num_bytes)
351 int num_words = CVAL(buf,smb_wct);
352 SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes);
353 smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4);
356 /*******************************************************************
357 reduce a file name, removing .. elements.
358 ********************************************************************/
359 void dos_clean_name(char *s)
363 DEBUG(3,("dos_clean_name [%s]\n",s));
365 /* remove any double slashes */
366 all_string_sub(s, "\\\\", "\\", 0);
368 while ((p = strstr(s,"\\..\\")) != NULL)
375 if ((p=strrchr(s,'\\')) != NULL)
382 trim_string(s,NULL,"\\..");
384 all_string_sub(s, "\\.\\", "\\", 0);
387 /*******************************************************************
388 reduce a file name, removing .. elements.
389 ********************************************************************/
390 void unix_clean_name(char *s)
394 DEBUG(3,("unix_clean_name [%s]\n",s));
396 /* remove any double slashes */
397 all_string_sub(s, "//","/", 0);
399 /* Remove leading ./ characters */
400 if(strncmp(s, "./", 2) == 0) {
401 trim_string(s, "./", NULL);
406 while ((p = strstr(s,"/../")) != NULL)
413 if ((p=strrchr(s,'/')) != NULL)
420 trim_string(s,NULL,"/..");
423 /****************************************************************************
425 ****************************************************************************/
426 void make_dir_struct(char *buf,char *mask,char *fname,SMB_OFF_T size,int mode,time_t date)
433 if ((mode & aDIR) != 0)
436 memset(buf+1,' ',11);
437 if ((p = strchr(mask2,'.')) != NULL)
440 memcpy(buf+1,mask2,MIN(strlen(mask2),8));
441 memcpy(buf+9,p+1,MIN(strlen(p+1),3));
445 memcpy(buf+1,mask2,MIN(strlen(mask2),11));
447 memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
449 put_dos_date(buf,22,date);
450 SSVAL(buf,26,size & 0xFFFF);
451 SSVAL(buf,28,(size >> 16)&0xFFFF);
452 StrnCpy(buf+30,fname,12);
455 DEBUG(8,("put name [%s] into dir struct\n",buf+30));
459 /*******************************************************************
460 close the low 3 fd's and open dev/null in their place
461 ********************************************************************/
462 void close_low_fds(void)
470 /* try and use up these file descriptors, so silly
471 library routines writing to stdout etc won't cause havoc */
473 fd = sys_open("/dev/null",O_RDWR,0);
474 if (fd < 0) fd = sys_open("/dev/null",O_WRONLY,0);
476 DEBUG(0,("Can't open /dev/null\n"));
480 DEBUG(0,("Didn't get file descriptor %d\n",i));
486 /****************************************************************************
487 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available,
491 ****************************************************************************/
492 int set_blocking(int fd, BOOL set)
496 #define FLAG_TO_SET O_NONBLOCK
499 #define FLAG_TO_SET O_NDELAY
501 #define FLAG_TO_SET FNDELAY
505 if((val = fcntl(fd, F_GETFL, 0)) == -1)
507 if(set) /* Turn blocking on - ie. clear nonblock flag */
511 return fcntl( fd, F_SETFL, val);
515 /****************************************************************************
516 transfer some data between two fd's
517 ****************************************************************************/
518 SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n,char *header,int headlen,int align)
520 static char *buf=NULL;
525 DEBUG(4,("transfer_file n=%.0f (head=%d) called\n",(double)n,headlen));
528 size = lp_readsize();
529 size = MAX(size,1024);
532 while (!buf && size>0) {
533 buf = (char *)Realloc(buf,size+8);
538 DEBUG(0,("Can't allocate transfer buffer!\n"));
542 abuf = buf + (align%8);
549 int s = (int)MIN(n,(SMB_OFF_T)size);
554 if (header && (headlen >= MIN(s,1024))) {
564 if (header && headlen > 0)
566 ret = MIN(headlen,size);
567 memcpy(buf1,header,ret);
570 if (headlen <= 0) header = NULL;
574 ret += read(infd,buf1+ret,s-ret);
578 ret2 = (outfd>=0?write_data(outfd,buf1,ret):ret);
579 if (ret2 > 0) total += ret2;
580 /* if we can't write then dump excess data */
582 transfer_file(infd,-1,n-(ret+headlen),NULL,0,0);
584 if (ret <= 0 || ret2 != ret)
592 /*******************************************************************
593 sleep for a specified number of milliseconds
594 ********************************************************************/
598 struct timeval tval,t1,t2;
605 tval.tv_sec = (t-tdiff)/1000;
606 tval.tv_usec = 1000*((t-tdiff)%1000);
610 sys_select_intr(0,&fds,&tval);
613 tdiff = TvalDiff(&t1,&t2);
618 /****************************************************************************
619 become a daemon, discarding the controlling terminal
620 ****************************************************************************/
621 void become_daemon(void)
627 /* detach from the terminal */
630 #elif defined(TIOCNOTTY)
632 int i = sys_open("/dev/tty", O_RDWR, 0);
634 ioctl(i, (int) TIOCNOTTY, (char *)0);
638 #endif /* HAVE_SETSID */
640 /* Close fd's 0,1,2. Needed if started by rsh */
645 /****************************************************************************
646 put up a yes/no prompt
647 ****************************************************************************/
653 if (!fgets(ans,sizeof(ans)-1,stdin))
656 if (*ans == 'y' || *ans == 'Y')
663 /****************************************************************************
664 this is a version of setbuffer() for those machines that only have setvbuf
665 ****************************************************************************/
666 void setbuffer(FILE *f,char *buf,int bufsize)
668 setvbuf(f,buf,_IOFBF,bufsize);
672 /****************************************************************************
673 expand a pointer to be a particular size
674 ****************************************************************************/
675 void *Realloc(void *p,size_t size)
681 DEBUG(5,("Realloc asked for 0 bytes\n"));
686 ret = (void *)malloc(size);
688 ret = (void *)realloc(p,size);
691 DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",(int)size));
697 /****************************************************************************
698 free memory, checks for NULL
699 ****************************************************************************/
700 void safe_free(void *p)
709 /****************************************************************************
710 get my own name and IP
711 ****************************************************************************/
712 BOOL get_myname(char *my_name)
718 /* get my host name */
719 if (gethostname(hostname, sizeof(hostname)) == -1) {
720 DEBUG(0,("gethostname failed\n"));
724 /* Ensure null termination. */
725 hostname[sizeof(hostname)-1] = '\0';
728 /* split off any parts after an initial . */
729 char *p = strchr(hostname,'.');
732 fstrcpy(my_name,hostname);
738 /****************************************************************************
739 interpret a protocol description string, with a default
740 ****************************************************************************/
741 int interpret_protocol(char *str,int def)
743 if (strequal(str,"NT1"))
744 return(PROTOCOL_NT1);
745 if (strequal(str,"LANMAN2"))
746 return(PROTOCOL_LANMAN2);
747 if (strequal(str,"LANMAN1"))
748 return(PROTOCOL_LANMAN1);
749 if (strequal(str,"CORE"))
750 return(PROTOCOL_CORE);
751 if (strequal(str,"COREPLUS"))
752 return(PROTOCOL_COREPLUS);
753 if (strequal(str,"CORE+"))
754 return(PROTOCOL_COREPLUS);
756 DEBUG(0,("Unrecognised protocol level %s\n",str));
761 /****************************************************************************
762 Return true if a string could be a pure IP address.
763 ****************************************************************************/
765 BOOL is_ipaddress(const char *str)
767 BOOL pure_address = True;
770 for (i=0; pure_address && str[i]; i++)
771 if (!(isdigit((int)str[i]) || str[i] == '.'))
772 pure_address = False;
774 /* Check that a pure number is not misinterpreted as an IP */
775 pure_address = pure_address && (strchr(str, '.') != NULL);
780 /****************************************************************************
781 interpret an internet address or name into an IP address in 4 byte form
782 ****************************************************************************/
784 uint32 interpret_addr(char *str)
789 if (strcmp(str,"0.0.0.0") == 0) return(0);
790 if (strcmp(str,"255.255.255.255") == 0) return(0xFFFFFFFF);
792 /* if it's in the form of an IP address then get the lib to interpret it */
793 if (is_ipaddress(str)) {
794 res = inet_addr(str);
796 /* otherwise assume it's a network name of some sort and use
798 if ((hp = Get_Hostbyname(str)) == 0) {
799 DEBUG(3,("Get_Hostbyname: Unknown host. %s\n",str));
802 if(hp->h_addr == NULL) {
803 DEBUG(3,("Get_Hostbyname: host address is invalid for host %s\n",str));
806 putip((char *)&res,(char *)hp->h_addr);
809 if (res == (uint32)-1) return(0);
814 /*******************************************************************
815 a convenient addition to interpret_addr()
816 ******************************************************************/
817 struct in_addr *interpret_addr2(char *str)
819 static struct in_addr ret;
820 uint32 a = interpret_addr(str);
825 /*******************************************************************
826 check if an IP is the 0.0.0.0
827 ******************************************************************/
828 BOOL zero_ip(struct in_addr ip)
831 putip((char *)&a,(char *)&ip);
836 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
837 /******************************************************************
838 Remove any mount options such as -rsize=2048,wsize=2048 etc.
839 Based on a fix from <Thomas.Hepper@icem.de>.
840 *******************************************************************/
842 static void strip_mount_options( pstring *str)
847 while(*p && !isspace(*p))
849 while(*p && isspace(*p))
855 pstrcpy(*str, tmp_str);
860 /*******************************************************************
861 Patch from jkf@soton.ac.uk
862 Split Luke's automount_server into YP lookup and string splitter
863 so can easily implement automount_path().
864 As we may end up doing both, cache the last YP result.
865 *******************************************************************/
867 #ifdef WITH_NISPLUS_HOME
868 static char *automount_lookup(char *user_name)
870 static fstring last_key = "";
871 static pstring last_value = "";
873 char *nis_map = (char *)lp_nis_home_map_name();
875 char nis_domain[NIS_MAXNAMELEN + 1];
876 char buffer[NIS_MAXATTRVAL + 1];
881 strncpy(nis_domain, (char *)nis_local_directory(), NIS_MAXNAMELEN);
882 nis_domain[NIS_MAXNAMELEN] = '\0';
884 DEBUG(5, ("NIS+ Domain: %s\n", nis_domain));
886 if (strcmp(user_name, last_key))
888 slprintf(buffer, sizeof(buffer)-1, "[%s=%s]%s.%s", "key", user_name, nis_map, nis_domain);
889 DEBUG(5, ("NIS+ querystring: %s\n", buffer));
891 if (result = nis_list(buffer, RETURN_RESULT, NULL, NULL))
893 if (result->status != NIS_SUCCESS)
895 DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status)));
896 fstrcpy(last_key, ""); pstrcpy(last_value, "");
900 object = result->objects.objects_val;
901 if (object->zo_data.zo_type == ENTRY_OBJ)
903 entry = &object->zo_data.objdata_u.en_data;
904 DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type));
905 DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val));
907 pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val);
908 pstring_sub(last_value, "&", user_name);
909 fstrcpy(last_key, user_name);
913 nis_freeresult(result);
916 strip_mount_options(&last_value);
918 DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value));
921 #else /* WITH_NISPLUS_HOME */
922 static char *automount_lookup(char *user_name)
924 static fstring last_key = "";
925 static pstring last_value = "";
927 int nis_error; /* returned by yp all functions */
928 char *nis_result; /* yp_match inits this */
929 int nis_result_len; /* and set this */
930 char *nis_domain; /* yp_get_default_domain inits this */
931 char *nis_map = (char *)lp_nis_home_map_name();
933 if ((nis_error = yp_get_default_domain(&nis_domain)) != 0)
935 DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error)));
939 DEBUG(5, ("NIS Domain: %s\n", nis_domain));
941 if (!strcmp(user_name, last_key))
943 nis_result = last_value;
944 nis_result_len = strlen(last_value);
949 if ((nis_error = yp_match(nis_domain, nis_map,
950 user_name, strlen(user_name),
951 &nis_result, &nis_result_len)) != 0)
953 DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n",
954 yperr_string(nis_error), user_name, nis_map));
956 if (!nis_error && nis_result_len >= sizeof(pstring))
958 nis_result_len = sizeof(pstring)-1;
960 fstrcpy(last_key, user_name);
961 strncpy(last_value, nis_result, nis_result_len);
962 last_value[nis_result_len] = '\0';
965 strip_mount_options(&last_value);
967 DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value));
970 #endif /* WITH_NISPLUS_HOME */
974 /*******************************************************************
975 are two IPs on the same subnet?
976 ********************************************************************/
977 BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask)
979 uint32 net1,net2,nmask;
981 nmask = ntohl(mask.s_addr);
982 net1 = ntohl(ip1.s_addr);
983 net2 = ntohl(ip2.s_addr);
985 return((net1 & nmask) == (net2 & nmask));
989 /****************************************************************************
990 a wrapper for gethostbyname() that tries with all lower and all upper case
991 if the initial name fails
992 ****************************************************************************/
993 struct hostent *Get_Hostbyname(const char *name)
995 char *name2 = strdup(name);
1000 DEBUG(0,("Memory allocation error in Get_Hostbyname! panic\n"));
1006 * This next test is redundent and causes some systems (with
1007 * broken isalnum() calls) problems.
1012 if (!isalnum(*name2))
1019 ret = sys_gethostbyname(name2);
1026 /* try with all lowercase */
1028 ret = sys_gethostbyname(name2);
1035 /* try with all uppercase */
1037 ret = sys_gethostbyname(name2);
1044 /* nothing works :-( */
1050 /****************************************************************************
1051 check if a process exists. Does this work on all unixes?
1052 ****************************************************************************/
1054 BOOL process_exists(pid_t pid)
1056 return(kill(pid,0) == 0 || errno != ESRCH);
1060 /*******************************************************************
1061 Convert a uid into a user name.
1062 ********************************************************************/
1064 char *uidtoname(uid_t uid)
1066 static fstring name;
1067 struct passwd *pass;
1069 if (winbind_uidtoname(name, uid))
1072 pass = sys_getpwuid(uid);
1073 if (pass) return(pass->pw_name);
1074 slprintf(name, sizeof(name) - 1, "%d",(int)uid);
1079 /*******************************************************************
1080 Convert a gid into a group name.
1081 ********************************************************************/
1083 char *gidtoname(gid_t gid)
1085 static fstring name;
1088 if (winbind_gidtoname(name, gid))
1091 grp = getgrgid(gid);
1092 if (grp) return(grp->gr_name);
1093 slprintf(name,sizeof(name) - 1, "%d",(int)gid);
1097 /*******************************************************************
1098 Convert a user name into a uid. If winbindd is present uses this.
1099 ********************************************************************/
1101 uid_t nametouid(char *name)
1103 struct passwd *pass;
1107 u = (uid_t)strtol(name, &p, 0);
1108 if (p != name) return u;
1110 if (winbind_nametouid(&u, name))
1113 pass = sys_getpwnam(name);
1114 if (pass) return(pass->pw_uid);
1118 /*******************************************************************
1119 Convert a name to a gid_t if possible. Return -1 if not a group. If winbindd
1120 is present does a shortcut lookup...
1121 ********************************************************************/
1123 gid_t nametogid(char *name)
1129 g = (gid_t)strtol(name, &p, 0);
1130 if (p != name) return g;
1132 if (winbind_nametogid(&g, name))
1135 grp = getgrnam(name);
1136 if (grp) return(grp->gr_gid);
1140 /*******************************************************************
1141 something really nasty happened - panic!
1142 ********************************************************************/
1143 void smb_panic(char *why)
1145 char *cmd = lp_panic_action();
1149 DEBUG(0,("PANIC: %s\n", why));
1155 /*******************************************************************
1156 a readdir wrapper which just returns the file name
1157 ********************************************************************/
1158 char *readdirname(DIR *p)
1160 SMB_STRUCT_DIRENT *ptr;
1163 if (!p) return(NULL);
1165 ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p);
1166 if (!ptr) return(NULL);
1168 dname = ptr->d_name;
1171 if (telldir(p) < 0) return(NULL);
1174 #ifdef HAVE_BROKEN_READDIR
1175 /* using /usr/ucb/cc is BAD */
1181 memcpy(buf, dname, NAMLEN(ptr)+1);
1188 /*******************************************************************
1189 Utility function used to decide if the last component
1190 of a path matches a (possibly wildcarded) entry in a namelist.
1191 ********************************************************************/
1193 BOOL is_in_path(char *name, name_compare_entry *namelist)
1195 pstring last_component;
1198 DEBUG(8, ("is_in_path: %s\n", name));
1200 /* if we have no list it's obviously not in the path */
1201 if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL)))
1203 DEBUG(8,("is_in_path: no name list.\n"));
1207 /* Get the last component of the unix name. */
1208 p = strrchr(name, '/');
1209 strncpy(last_component, p ? ++p : name, sizeof(last_component)-1);
1210 last_component[sizeof(last_component)-1] = '\0';
1212 for(; namelist->name != NULL; namelist++)
1214 if(namelist->is_wild)
1216 if (mask_match(last_component, namelist->name, case_sensitive))
1218 DEBUG(8,("is_in_path: mask match succeeded\n"));
1224 if((case_sensitive && (strcmp(last_component, namelist->name) == 0))||
1225 (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0)))
1227 DEBUG(8,("is_in_path: match succeeded\n"));
1232 DEBUG(8,("is_in_path: match not found\n"));
1237 /*******************************************************************
1238 Strip a '/' separated list into an array of
1239 name_compare_enties structures suitable for
1240 passing to is_in_path(). We do this for
1241 speed so we can pre-parse all the names in the list
1242 and don't do it for each call to is_in_path().
1243 namelist is modified here and is assumed to be
1244 a copy owned by the caller.
1245 We also check if the entry contains a wildcard to
1246 remove a potentially expensive call to mask_match
1248 ********************************************************************/
1250 void set_namearray(name_compare_entry **ppname_array, char *namelist)
1253 char *nameptr = namelist;
1254 int num_entries = 0;
1257 (*ppname_array) = NULL;
1259 if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0')))
1262 /* We need to make two passes over the string. The
1263 first to count the number of elements, the second
1268 if ( *nameptr == '/' )
1270 /* cope with multiple (useless) /s) */
1274 /* find the next / */
1275 name_end = strchr(nameptr, '/');
1277 /* oops - the last check for a / didn't find one. */
1278 if (name_end == NULL)
1281 /* next segment please */
1282 nameptr = name_end + 1;
1286 if(num_entries == 0)
1289 if(( (*ppname_array) = (name_compare_entry *)malloc(
1290 (num_entries + 1) * sizeof(name_compare_entry))) == NULL)
1292 DEBUG(0,("set_namearray: malloc fail\n"));
1296 /* Now copy out the names */
1301 if ( *nameptr == '/' )
1303 /* cope with multiple (useless) /s) */
1307 /* find the next / */
1308 if ((name_end = strchr(nameptr, '/')) != NULL)
1313 /* oops - the last check for a / didn't find one. */
1314 if(name_end == NULL)
1317 (*ppname_array)[i].is_wild = ms_has_wild(nameptr);
1318 if(((*ppname_array)[i].name = strdup(nameptr)) == NULL)
1320 DEBUG(0,("set_namearray: malloc fail (1)\n"));
1324 /* next segment please */
1325 nameptr = name_end + 1;
1329 (*ppname_array)[i].name = NULL;
1334 /****************************************************************************
1335 routine to free a namearray.
1336 ****************************************************************************/
1338 void free_namearray(name_compare_entry *name_array)
1343 if(name_array->name != NULL)
1344 free(name_array->name);
1346 free((char *)name_array);
1349 /****************************************************************************
1350 Simple routine to do POSIX file locking. Cruft in NFS and 64->32 bit mapping
1351 is dealt with in posix.c
1352 ****************************************************************************/
1354 BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type)
1356 SMB_STRUCT_FLOCK lock;
1359 DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type));
1362 lock.l_whence = SEEK_SET;
1363 lock.l_start = offset;
1369 ret = fcntl(fd,op,&lock);
1372 DEBUG(3,("fcntl_lock: fcntl lock gave errno %d (%s)\n",errno,strerror(errno)));
1375 if (op == SMB_F_GETLK)
1378 (lock.l_type != F_UNLCK) &&
1379 (lock.l_pid != 0) &&
1380 (lock.l_pid != sys_getpid()))
1382 DEBUG(3,("fcntl_lock: fd %d is locked by pid %d\n",fd,(int)lock.l_pid));
1386 /* it must be not locked or locked by me */
1390 /* a lock set or unset */
1393 DEBUG(3,("fcntl_lock: lock failed at offset %.0f count %.0f op %d type %d (%s)\n",
1394 (double)offset,(double)count,op,type,strerror(errno)));
1398 /* everything went OK */
1399 DEBUG(8,("fcntl_lock: Lock call successful\n"));
1404 /*******************************************************************
1405 is the name specified one of my netbios names
1406 returns true is it is equal, false otherwise
1407 ********************************************************************/
1408 BOOL is_myname(char *s)
1413 for (n=0; my_netbios_names[n]; n++) {
1414 if (strequal(my_netbios_names[n], s))
1417 DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret));
1421 /*******************************************************************
1422 set the horrid remote_arch string based on an enum.
1423 ********************************************************************/
1424 void set_remote_arch(enum remote_arch_types type)
1426 extern fstring remote_arch;
1431 fstrcpy(remote_arch, "WfWg");
1434 fstrcpy(remote_arch, "OS2");
1437 fstrcpy(remote_arch, "Win95");
1440 fstrcpy(remote_arch, "WinNT");
1443 fstrcpy(remote_arch, "Win2K");
1446 fstrcpy(remote_arch,"Samba");
1449 ra_type = RA_UNKNOWN;
1450 fstrcpy(remote_arch, "UNKNOWN");
1455 /*******************************************************************
1456 Get the remote_arch type.
1457 ********************************************************************/
1458 enum remote_arch_types get_remote_arch(void)
1464 void out_ascii(FILE *f, unsigned char *buf,int len)
1469 fprintf(f, "%c", isprint(buf[i])?buf[i]:'.');
1473 void out_data(FILE *f,char *buf1,int len, int per_line)
1475 unsigned char *buf = (unsigned char *)buf1;
1482 fprintf(f, "[%03X] ",i);
1485 fprintf(f, "%02X ",(int)buf[i]);
1487 if (i%(per_line/2) == 0) fprintf(f, " ");
1488 if (i%per_line == 0)
1490 out_ascii(f,&buf[i-per_line ],per_line/2); fprintf(f, " ");
1491 out_ascii(f,&buf[i-per_line/2],per_line/2); fprintf(f, "\n");
1492 if (i<len) fprintf(f, "[%03X] ",i);
1495 if ((i%per_line) != 0)
1499 n = per_line - (i%per_line);
1501 if (n>(per_line/2)) fprintf(f, " ");
1506 n = MIN(per_line/2,i%per_line);
1507 out_ascii(f,&buf[i-(i%per_line)],n); fprintf(f, " ");
1508 n = (i%per_line) - n;
1509 if (n>0) out_ascii(f,&buf[i-n],n);
1514 void print_asc(int level, unsigned char *buf,int len)
1518 DEBUG(level,("%c", isprint(buf[i])?buf[i]:'.'));
1521 void dump_data(int level,char *buf1,int len)
1523 unsigned char *buf = (unsigned char *)buf1;
1527 DEBUG(level,("[%03X] ",i));
1529 DEBUG(level,("%02X ",(int)buf[i]));
1531 if (i%8 == 0) DEBUG(level,(" "));
1533 print_asc(level,&buf[i-16],8); DEBUG(level,(" "));
1534 print_asc(level,&buf[i-8],8); DEBUG(level,("\n"));
1535 if (i<len) DEBUG(level,("[%03X] ",i));
1543 if (n>8) DEBUG(level,(" "));
1544 while (n--) DEBUG(level,(" "));
1547 print_asc(level,&buf[i-(i%16)],n); DEBUG(level,(" "));
1549 if (n>0) print_asc(level,&buf[i-n],n);
1550 DEBUG(level,("\n"));
1554 char *tab_depth(int depth)
1556 static pstring spaces;
1557 memset(spaces, ' ', depth * 4);
1558 spaces[depth * 4] = 0;
1562 /*****************************************************************************
1563 * Provide a checksum on a string
1565 * Input: s - the null-terminated character string for which the checksum
1566 * will be calculated.
1568 * Output: The checksum value calculated for s.
1570 * ****************************************************************************
1572 int str_checksum(const char *s)
1580 res ^= (c << (i % 15)) ^ (c >> (15-(i%15)));
1585 } /* str_checksum */
1589 /*****************************************************************
1590 zero a memory area then free it. Used to catch bugs faster
1591 *****************************************************************/
1592 void zero_free(void *p, size_t size)
1599 /*****************************************************************
1600 set our open file limit to a requested max and return the limit
1601 *****************************************************************/
1602 int set_maxfiles(int requested_max)
1604 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
1606 int saved_current_limit;
1608 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1609 DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n",
1612 return requested_max;
1616 * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to
1617 * account for the extra fd we need
1618 * as well as the log files and standard
1619 * handles etc. Save the limit we want to set in case
1620 * we are running on an OS that doesn't support this limit (AIX)
1621 * which always returns RLIM_INFINITY for rlp.rlim_max.
1624 saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max);
1626 if(setrlimit(RLIMIT_NOFILE, &rlp)) {
1627 DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n",
1628 (int)rlp.rlim_cur, strerror(errno) ));
1630 return saved_current_limit;
1633 if(getrlimit(RLIMIT_NOFILE, &rlp)) {
1634 DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n",
1637 return saved_current_limit;
1640 #if defined(RLIM_INFINITY)
1641 if(rlp.rlim_cur == RLIM_INFINITY)
1642 return saved_current_limit;
1645 if((int)rlp.rlim_cur > saved_current_limit)
1646 return saved_current_limit;
1648 return rlp.rlim_cur;
1649 #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */
1651 * No way to know - just guess...
1653 return requested_max;
1657 /*****************************************************************
1658 splits out the start of the key (HKLM or HKU) and the rest of the key
1659 *****************************************************************/
1660 BOOL reg_split_key(char *full_keyname, uint32 *reg_type, char *key_name)
1664 if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp)))
1671 DEBUG(10, ("reg_split_key: hive %s\n", tmp));
1673 if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE"))
1675 (*reg_type) = HKEY_LOCAL_MACHINE;
1677 else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS"))
1679 (*reg_type) = HKEY_USERS;
1683 DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp));
1687 if (next_token(NULL, tmp, "\n\r", sizeof(tmp)))
1689 fstrcpy(key_name, tmp);
1696 DEBUG(10, ("reg_split_key: name %s\n", key_name));
1702 /*****************************************************************
1703 like mktemp() but make sure that no % characters are used
1704 % characters are bad for us because of the macro subs
1705 *****************************************************************/
1706 char *smbd_mktemp(char *template)
1708 char *p = mktemp(template);
1712 if (!p) return NULL;
1714 while ((p2=strchr(p,'%'))) {
1716 while (sys_stat(p,&st) == 0 && p2[0] < 'Z') {
1717 /* damn, it exists */
1721 /* oh well ... better return something */
1731 /*****************************************************************
1732 like strdup but for memory
1733 *****************************************************************/
1734 void *memdup(void *p, size_t size)
1737 if (size == 0) return NULL;
1739 if (!p2) return NULL;
1740 memcpy(p2, p, size);
1744 /*****************************************************************
1745 get local hostname and cache result
1746 *****************************************************************/
1747 char *myhostname(void)
1757 /*****************************************************************
1758 a useful function for returning a path in the Samba lock directory
1759 *****************************************************************/
1760 char *lock_path(char *name)
1762 static pstring fname;
1764 pstrcpy(fname,lp_lockdir());
1765 trim_string(fname,"","/");
1767 if (!directory_exist(fname,NULL)) {
1772 pstrcat(fname,name);
1777 /*******************************************************************
1778 Given a filename - get its directory name
1779 NB: Returned in static storage. Caveats:
1780 o Not safe in thread environment.
1781 o Caller must not free.
1782 o If caller wishes to preserve, they should copy.
1783 ********************************************************************/
1785 char *parent_dirname(const char *path)
1787 static pstring dirpath;
1793 pstrcpy(dirpath, path);
1794 p = strrchr(dirpath, '/'); /* Find final '/', if any */
1796 pstrcpy(dirpath, "."); /* No final "/", so dir is "." */
1799 ++p; /* For root "/", leave "/" in place */
1806 /*******************************************************************
1807 determine if a pattern contains any Microsoft wildcard characters
1808 *******************************************************************/
1809 BOOL ms_has_wild(char *s)
1812 while ((c = *s++)) {
1826 /*******************************************************************
1827 a wrapper that handles case sensitivity and the special handling
1829 *******************************************************************/
1830 BOOL mask_match(char *string, char *pattern, BOOL is_case_sensitive)
1833 if (strcmp(string,"..") == 0) string = ".";
1834 if (strcmp(pattern,".") == 0) return False;
1836 if (is_case_sensitive) {
1837 return ms_fnmatch(pattern, string) == 0;
1840 fstrcpy(p2, pattern);
1841 fstrcpy(s2, string);
1844 return ms_fnmatch(p2, s2) == 0;
1851 /*******************************************************************
1852 This routine is a trick to immediately catch errors when debugging
1853 with insure. A xterm with a gdb is popped up when insure catches
1854 a error. It is Linux specific.
1855 ********************************************************************/
1856 int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
1861 pstring cmd = "/usr/X11R6/bin/xterm -display :0 -T Panic -n Panic -e /bin/sh -c 'cat /tmp/ierrs.*.%d ; gdb /proc/%d/exe %d'";
1863 slprintf(pidstr, sizeof(pidstr), "%d", sys_getpid());
1864 pstring_sub(cmd, "%d", pidstr);
1868 h = dlopen("/usr/local/parasoft/insure++lite/lib.linux2/libinsure.so", RTLD_LAZY);
1869 fn = dlsym(h, "_Insure_trap_error");
1872 ret = fn(a1, a2, a3, a4, a5, a6);